Feed-water heater.



Patented Feb. 6, I900.

s. P. BUSH.

FEED WATER HEATER.

(Application filed. Jan. 16, 1899.)

2. Sheets-Sheet I.

(No Model.)

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No. 642,783. Patented Feb. 6, I900. S. P. BUSH.

FEED WATER HEATER.

(Application filed. Jan. 16, 1899.)

(No Model.) 2 Sheetsshnet 2.

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NITED STATES ATENT FFIQE.

SAMUEL P. BUSH, OF COLUMBUS, OHIO.

FEED-WATE R H EATER.

SPECIFICATION forming part of Letters Patent N 0. 642,783, datedFebruary 6, 1900.

Application filed January 16, 1899. Serial No. 702,210. (No model.)

To all whom it may concern:

Be it known that I, SAMUEL P. BUSH, a citizen of the United States,residing at Columbus, in the county of Franklin and State of Ohio, haveinvented a certain new and useful Improvement in Feed-Water Heaters forL0- comotives, of which the following is a specification. My inventionrelates to the improvement of feed-water heaters forlocomotive-boiler-supply tanks; and the objects of my invention are toprovide improved means for heating the boiler feed-water before the samepasses to the boiler of a locomotive, to so construct and arrange theparts of my improved feedwater heater as to impart a comparatively highdegree of heat tothe waterin its passage from the tank to theinjectorswithout the necessity of heating that portion of the watercontained in the tank which is not needed for im mediate use, to soconstruct and arrange the parts of my device as to facilitate the use ofexhaust-steam from an exhauststeam passage or other suit-able source,and to produce other improvements in details of construction andarrangement of parts,which will be more fully pointed out hereinafter.These objects I accomplish in the manner illustrated in the accompanyingdrawings, in which- Figure 1 is a detail view in perspective of aportion of a locomotive-body and feed-water tank containing myimprovements. Fig. 2 is a sectional View on line 00 at of Fig. 3 of asteam-discharging shoe or nozzle which I employ in the mannerhereinafter described. Fig. 3 is a View in elevation of the same. Fig.4. is a detail View in section of a portion of a steam-exhaust column,showing the manner of connecting therewith the pipe through the mediumof which steam is conducted to the tank. Fig. 5 is a vertical sectionthrough a portion of one leg of the water-tank and illus trating theconnections between the latter and the exhaust-nozzle, and Fig. 6 is asectional View on line 3 y of Fig. 5.

Similar numerals refer to similar parts throughout the several views.

In carrying out my invention I form in the end portion of one leg of theusual feed-water tank 1 a compartment 2, this compartment being formedby the employment of a trans verse partition wall or plate 3 between thesides of said tank-leg, said wall extending to a point slightly abovethe floor of the tank. Rising from the floor of said compartment 2 andin front of the lower portion of the partition 3 is a bafiie ordeflector plate 4, the base iug upward through the bottom of the tankandon the rear side of the partition 3 is a steam-inlet pipe 8, the latterpreferably extending to a point in the upper portion of the tank, andthence bent downward to a point in rear of the lowerportion of thepartition 3. At this point the pipe 8 is screwed into connection with asteam-dischargin g nozzle-body 9, which, projecting forwardly beneaththe partition 3, is of such length as to extend the greater portion ofthe distance between the side walls of the tank-leg. This shoe'has itsouter discharging front portion, as indicated more clearly in Figs. 2and 3 of the drawings, provided atintervals with slotted outlet-openings10.

As indicated more clearly in Fig. 5 of the drawings, the pipe 8 may berun from the tank forwardly into the locomotive smoke-box, and thenceinto the usual exhaust-steam column 11, through which the exhaust-steamfrom the cylinder escapes in the usual manner.

In Fig. 4 of the drawings I have illustrated the preferable connectionof the supply-pipe 8 with the exhaust-column, which consists inproviding said pipe 8 with an extension 12, which enters theexhaust-nozzle through an opening in the wall thereof and which on theinn er side of said column is turned downward, presenting an open month,which is adapted to receive a proportion of the steam which risesthrough the column.

For the reason hereinafter set forth I preferably provide the pipe 8 ata suitable point (indicated at 13) with a check-valve, which is adaptedto close by an upward movement or movement toward the source ofexhauststeam. I also provide in said pipe 8, as indicated at 14, asuitable regulatingwalve, while in that portion of said pipe which iscontained in the tank I provide, preferably at a point indicated at 15,a' check-valve, which is adapted to close by a rearward movement.

From the construction herein described it will be seen that theexhaust-steam which passes through the pipe 8 will be discharged throughthe slotted openings 10 of the nozzle 9, and by contact with theinclined and curved face of the baffle-plate athe steam thus dischargedwill be deflected upward and outward and mingled with that volume ofwater which is contained in the supplemental tank or compartment 2. Bythis process it will be observed that substantially all of the heatingeffect of the steam is imparted to the comparatively small body of watercontained in the compartment 2 and that in said compartment the portionof water contained therein which is subjected to the most direct andtherefore greater heat is contained in the lower portion of saidcompartment or that portion from which the water is discharged. It willthus be seen that by subjecting a comparatively small proportion of thewater contained in the tank to the heating action of the steam, and asthe water thus heated is that portion which passes first to the boiler,the diificulty of imparting a uniform and comparatively high degree ofheat to the feed-water prior to its discharge from the tank is greatlyreduced. It will also be seen that the form of the steam-dischargingnozzle 9 and its location with reference to the baffle-plate t mustresult in a diffusion or intermingling of the steam with the Watercontained in the compartment 2, which, as will readily be seen, mustgreatly aid in quickly and effectively heating the comparatively smallbody of water contained in said compartment.

It is obvious that the regulating-valve 14 may be employed to regulateor entirely cut oil, when desired, the current of steam from the tank,and that in case of a vacuum being formed in the exhaust-nozzle or othersource In Fig. 5 of the drawings I have shown in dotted lines amodification in the manner of supplying the pipe 8 with steam, whichconsists in running said pipe into the steam-passage below theexhaust-column.

Although I have shown and described means whereby the exhaust-steam isconveyed from the exhaust-steam column of a locomotive to the tank, itis obvious that the pipe 8 might lead directly from the cylinders or anyother suitable source of exhaust-steam.

The construction and arrangement of the parts of my improvements aresuch as to admit of their being employed in conjunction with theordinary form of feed-water tank without necessitating a reconstructionof the same and with comparatively slightlabor and expense.

Having now fully described my invention, What I claim, and desire tosecure by Letters Patent, is-

I. In a feed-water heater for locomotives, the combination with thewater-tank, a supplemental water-compartment and a permanentcommunication between the main compartment and supplemental compartmentin the lower portion of the tank and a wateroutlet communicating withsaid supplemental compartment, of a steam-carrying pipe leading from asupply of exhaust-steam and discharging into said supplementalcompartment through said partition-opening and at a point adjacent tosaid water-outlet,substantially as specified.

2. In afeed-water heater for locomotives, the combination with thewater-tank, a supplemental water-compartment permanently communicatingin its lower portion with the main compartment at a point adjacent tothe bottom of the tank and a water-outlet communicating with saidsupplemental compartment, of a steam-carrying pipe leading from a supplyof exhaust-steam and having one end discharginginto said supplementalcompartment adjacent to the water-outlet thereof, a controlling-valve14: and a check-valve 15 contained in said steam-pipe, substantially asspecified.

SAMUEL P. BUSH. In presence of- A. L. PHELPS, EDWARD M. TAYLOR.

